8数码问题
利用了先广遍历实现了8数码问题，但是回来浪费较多的存储空间-8 issue of the use of a digital wide traverse first eight digital achieved, but returned to waste more storage space
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001986s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.086347s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002265s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001937s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002179s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003661s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002070s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004209s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014814s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002294s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 159255 [ RunTime:0.001238s ]
